Unocoin – An Indian-Based Bitcoin Exchange and Payment Gateway Author: Timothy Sohn Last Updated: 25 October 2016 (NewsBTC) – Unocoin is India’s most popular Bitcoin Company. Unocoin started as a platform to buy, sell, send and receive bitcoins in India. The company later expanded and started offering a mobile phone recharge service (airtime) through bitcoins. After that, Unocoin developed a unique Systematic Investment Plan (SIP) to help the users to buy bitcoins by averaging out the cost. This reduced the risk of investing big amounts. Now, Unocoin offers merchants a payment gateway as well.